home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.photo
- Path: sparky!uunet!cs.utexas.edu!uwm.edu!zaphod.mps.ohio-state.edu!hobbes.physics.uiowa.edu!news.uiowa.edu!news.weeg.uiowa.edu!goldis
- From: goldis@news.weeg.uiowa.edu (Al Goldis)
- Subject: Re: I Hate Grainy Pictures
- Message-ID: <1992Dec21.224508.12149@news.weeg.uiowa.edu>
- Keywords: HELP
- Organization: University of Iowa, Iowa City, IA, USA
- References: <1992Dec13.031923.18186@news.acns.nwu.edu> <1992Dec13.035910.19938@athena.cs.uga.edu> <1992Dec13.071511.21745@news.acns.nwu.edu> <1992Dec13.184815.3306@athena.cs.uga.edu>
- Date: Mon, 21 Dec 1992 22:45:08 GMT
- Lines: 41
-
- In <1992Dec13.184815.3306@athena.cs.uga.edu> mcovingt@aisun3.ai.uga.edu (Michael Covington) writes:
- >In article <1992Dec13.071511.21745@news.acns.nwu.edu> mjg@nwu.edu (Michael J Graven) writes:
- >>Michael Covington (mcovingt@aisun3.ai.uga.edu) writes:
- >>
- >>> If underagitation reduces grain for you, then a shorter development time,
- >>> with normal agitation, should do the same.
- >>
- >>One would think so. But my efforts didn't show that. The contrast on the
- >>normally-agitated film at recommended time was about a grade higher, which
- >>is a real consideration when you're trying to fit mixed-race basketball
- >>teams in a limited-contrast-range halftone.
-
- >So reduce the development time further, to get the desired contrast.
-
- What Michael Graven is describing is a valid--if unusual--method of
- reducing contrast. In effect what's happening is you're pushing the
- shadows more than the highlights. The extreme underagitation results
- in local developer exhaustion in the highlights, but the shadows which
- require less developer continue to develop.
-
- You may consider it an extreme measure, but in extreme low light
- situations (which are often very *contrasty* low light) it can help to
- keep the hightlights from exploding into an impenetrable block of
- silver.
-
- However, I would be very careful that you're not actually
- underexposing the film. You know what they say: expose for the
- shadows, develop for the highli----ack! Ouch, that hurt! I guess you
- already knew what they say. :-)
-
- I would encourage you to do yourself a favor and switch developers to
- Press-Maxx. I have been using it for about a year and a half and have
- found it to be a miraculous improvement for pushing. With Press-Maxx,
- Tmax 400 pushed to 3200 looks as good if not better than 400 pushed to
- 1600 with Tmax developer. Also, contrast seems to stay under control
- better with Press-Maxx.
- --
- Al Goldis alan-goldis@uiowa.edu
- "Pictures are moments truth, touched by light, that show character."
- --Annie Griffiths-Belt
-
-